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Determination of the hydrodynamic dispersion in river with presence of transient storage

In: Acta Hydrologica Slovaca, vol. 17, no. 2
Marek Sokáč - Yvetta Velísková

Details:

Year, pages: 2016, 140 - 148
Keywords:
hydrodynamic dispersion, longitudinal dispersion coefficient, tracer field experiment, tracer, colouring agent
Original source URL: http://www.ih.sav.sk/ah
About article:
Paper describes the field tracer experiments - determination of the coefficient of longitudinal dispersion in river with expected occurrence of dead zones. Tracer experiments were carried out on 1415 m section of Malina channel. During the experiments was a food colouring agent successfully used as tracer. The evaluation of field measurements confirmed the presence of dead zones, i.e. river sections and regions with the appearance of small (zero or even negative) velocities that were formed due to the extensive presence of vegetation in the river. These areas capture part of the transported substance (tracer) and then gradually release the substance and incorporated back into the stream, creating a significant distortion of the tracer concentration time course. Strong influence of the dead zones raises the question of the adequacy using standard analytical solutions, whether for the purpose of determining the coefficient of longitudinal dispersion or for modelling the dispersion of pollution or other substances carried by the river.
How to cite:
ISO 690:
Sokáč, M., Velísková, Y. 2016. Determination of the hydrodynamic dispersion in river with presence of transient storage. In Acta Hydrologica Slovaca, vol. 17, no.2, pp. 140-148. 2644-4690.

APA:
Sokáč, M., Velísková, Y. (2016). Determination of the hydrodynamic dispersion in river with presence of transient storage. Acta Hydrologica Slovaca, 17(2), 140-148. 2644-4690.